07 2020 档案

摘要：题目如下： Given an array of integers arr of even length n and an integer k. We want to divide the array into exactly n / 2 pairs such that the sum of each 阅读全文

摘要：题目如下： Given a string path, where path[i] = 'N', 'S', 'E' or 'W', each representing moving one unit north, south, east, or west, respectively. You star 阅读全文

摘要：题目如下： Given a binary array nums, you should delete one element from it. Return the size of the longest non-empty subarray containing only 1's in the r 阅读全文

摘要：题目如下： Given two positive integers n and k. A factor of an integer n is defined as an integer i where n % i == 0. Consider a list of all factors of n s 阅读全文

摘要：题目如下： Given an array of unique integers salary where salary[i] is the salary of the employee i. Return the average salary of employees excluding the m 阅读全文

摘要：题目如下： Your country has an infinite number of lakes. Initially, all the lakes are empty, but when it rains over the nth lake, the nth lake becomes full 阅读全文